The Stack.

/How the stack works

Three methods. One loop. Each one supercharges the next.

Pretest exposes your gaps. Active Recall hammers those gaps into memory. Spaced Repetition via Anki makes sure they stay there permanently.

You don't do these separately. You run them as one system, every session, every time. The compound effect over weeks is what separates people who pass exams from people who actually retain knowledge for years afterwards.

Most people study completely backwards. They start at page one, read every word, take pages of notes, then panic-cram before the test. That entire approach is wasted effort. The science is brutal on this — passive consumption builds familiarity, not retention. You feel like you know things you can't actually recall under pressure. The stack flips the entire process: you start by failing on purpose, then you target your study with surgical precision.

/The skip-to-quiz technique

This one technique alone will save you hundreds of hours over your study lifetime. Most structured courses — Microsoft Learn, AWS Skill Builder, Cisco NetAcad, Udemy, Coursera, LinkedIn Learning, textbook chapters, official documentation — follow the same lazy structure. They give you the content first, then bury a quiz at the end.

Everyone reads top to bottom like they're supposed to. They take an hour to consume the module. Then they pass the quiz with 90% and feel productive. That's a waste of time and you know it.

The Fail First move is to scroll past the content and go straight to the quiz. Take it cold. You'll score 30–50%. Now you know exactly what the course considers important and exactly where your gaps are.

Why this works

The quiz is the most concentrated representation of what the course author thinks you need to know. Every question maps to a learning objective. Taking the quiz first extracts those objectives without reading a word. Your brain is now primed — when you do read, you're hunting for answers to questions you've already attempted. That's exactly the cognitive state where information sticks hardest.

When to use it

• Microsoft Learn modules (knowledge checks at end of each unit)
• AWS Skill Builder courses
• Udemy / Coursera / LinkedIn Learning module quizzes
• Textbook chapters with end-of-chapter questions
• Self-study certification guides
• Any platform with "Knowledge Check" or "Module Review" sections

When it doesn't work

• Courses where the quiz is locked behind completion requirements
• Pure video courses with no assessments
• Hands-on labs where the assessment is doing the practical

/Scenario 1 — Taking a full practice test

The strongest entry point to any new subject. Before you've studied anything, take the test.

Before

Find an official practice exam, past paper, mock test, or quiz bank. The closer it mirrors the real exam, the better. Set a timer for the actual exam duration. No notes. No browser tabs. No cheating. Treat it like the real thing.

During

Answer every single question even if you're completely guessing. Skipping questions kills the effect. Mark questions as you go — green for confident, amber for uncertain, red for guessed. Don't change answers at the end. Submit what your gut said.

After

Write down your score. For every wrong answer, write three things on a fresh page: the question, your wrong answer, and the correct answer. Build the gap list. Then study only the gaps. Make Anki cards for every gap question. Retest within 3–7 days with a different paper.

/Scenario 2 — Watching a lecture or video

Before

Find 3–5 practice questions on the topic and answer them cold. No questions? Write 5 things you think you already know. You'll be wrong on some — that's the point.

During

Pause every 10–15 minutes. Close your eyes and recite what was just covered — out loud or on paper. Don't transcribe word for word. Write questions: "what are the two types of encryption and how do they differ?"

After

Convert every note into an Anki card. One fact per card. Add to your deck. Trust Anki's scheduling — don't override it.

/Scenario 3 — Reading a textbook

Before

Skim headings only. Write one question per heading. If there's a chapter quiz — apply the skip-to-quiz technique first.

During

Go one section at a time. After each section close the material and answer your question from memory. Then check. What you got wrong = Anki card.

After

Run through all your questions without looking. If a concept keeps sliding off — don't re-read. Feynman it.

/Scenario 4 — Practical / hands-on tasks

Before

Write down every step you think is involved in completing the task. Cold. No guides. You'll be wrong on some — that's your gap map before you've started.

During

Every time you get stuck or your prediction was wrong, note it. Those friction points are your flashcards.

After

Without opening any guide, write the full process from memory. Anything missing or fuzzy = tomorrow's deck.

/Scenario 5 — Written assessments and coursework

Fail First doesn't translate cleanly to essays. You can't "fail" an essay before writing it. But you can apply the stack — you just shift the mechanism.

1. Get the marking rubric first. That's your pretesting equivalent. The rubric tells you exactly what the examiner wants.
2. Read top-scoring examples. Find high-scoring exemplars. Read them for structure, not content.
3. Write a cold draft from memory. Before researching, attempt the question with only what you know. Set a timer. 500–1000 words. This is your fail-first.
4. Build a gap list from the cold draft. What couldn't you cite? Which arguments fell apart? That's your study plan.
5. Active recall the source material. Use SQ3R or question-led reading. Build Anki cards for every key concept, quote, theory, framework.
6. Build a concept bank in Anki. Definitions, theorists, dates, frameworks, counter-arguments, evidence, key quotes.
7. Feynman your argument structure. Can you explain your thesis in one sentence to a beginner?
8. Practice with timed cold essays. One full timed run on a similar question before the real thing.
9. Reverse outline your drafts. Summarise each paragraph in one sentence. If structure isn't clear, restructure.
10. Get feedback early. Don't wait until the final version.

For a deeper guide on essay writing — including the 5 Ws and 1 H method for breadth, and the Why-Why-Why method for depth, with worked examples — see the full Written Assessments guide.

/Anki — how to use it inside the stack

• Create cards immediately after each study session — don't batch for later
• One fact per card. "What does AES stand for?" not "Explain everything about AES"
• Use cloze deletions for definitions — Anki has this built in
• Add context: an image, an example, a real-world use case
• Rate honestly — hesitated? Hit Hard, not Good
• Clear daily review queue before adding new cards
• If a card keeps failing, stop and Feynman the concept
• 20–50 new cards per session max — more becomes unmanageable fast
• Tag cards by topic so you can filter and drill weak areas
• Sync to mobile via AnkiWeb for dead time (commutes, queues, breaks)

/What to do with wrong answers

This is where most people screw up the system. Getting questions wrong is not the problem — it's the whole mechanism.

1. Write the question and your wrong answer verbatim — exact text
2. Write why you got it wrong in one sentence
3. Write the correct answer with a one-line explanation
4. Create an Anki card the same day
5. Re-test within a week

If the same question keeps appearing across multiple practice tests — that's a deep gap. Stop running tests and Feynman the underlying concept until you can explain it to a child.

/The weekly loop

/Troubleshooting

• Practice scores not improving → You're studying broadly. Focus only on the gap list.
• Anki cards keep failing same way → Concept isn't understood. Stop drilling and Feynman it.
• Review queue overwhelming → Too many new cards. Stop adding until queue is under 50.
• You feel like you're not learning → Run a cold pretest right now. You'll score higher than you think.
• You're avoiding sessions → Lower the bar. 10 mins of Anki = a win. Consistency beats intensity.
• Written assessment feels stuck → Do another cold draft. You haven't exposed real gaps yet.
• Skip-to-quiz scoring 90%+ every time → You're studying material you already know. Move up.

/The five rules you don't break

1. Always pretest first. Even 5 questions. Even if you score zero. Especially then.
2. Never re-read notes as revision. Convert to Anki or they're dead weight.
3. Do Anki reviews daily. Miss two days and the queue becomes a wall.
4. If a card keeps failing — Feynman it. Don't just keep flunking. Go understand it.
5. Score every pretest. Track the number. Improvement is the whole feedback loop.